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=== Nitrogen ===
Required for the production of most plant cells as well as chlorophyll, used in photosynthesis.
=== Phosphorus ===
Essential for the flowering period, Phosphorus strengthens the plant and is used for root development.
=== Potassium ===
Required for root development. Potassium is also regulates the opening and closing of [[Anatomy of Cannabis#Stomata|stomata]] for [[Plant processes#Gas exchange|gas exchange]].
== Pre-mixing nutrients ==
If you intend to mix nutrients in water in large quantities and leave it to sit for a period of time one should consider the nutrients used how they may change. When mixing organic nutrients in water they will respire aerobically for a period of time, until they run out of oxygen and then begin to respire anaerobically. This destroys some of the bacteria's capabilities and makes it less effective feed. The water will begin to smell like a pond or an asshole when the bacteria begin to respire anaerobically which is a surefire way to tell. Synthetically derived nutrients may last longer in water but can also become less effective as some nutrients may combine to create less accessible forms of the nutrient for the plant.
==Methods of Nutrient delivery ==
=== Via growing medium ===
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